Income Taxes	6 Months Ended
Feb. 28, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We determine our interim income tax provision by estimating our effective income tax rate expected to be applicable for the full fiscal year. Our effective income tax rate is dependent upon several factors, such as tax rates in state and foreign jurisdictions and the relative amount of income we earn in such jurisdictions. In determining our full year estimate, we do not include the estimated impact of unusual and/or infrequent items, which may cause significant variations in the customary relationship between income tax expense and income before income taxes. We exercise significant judgment in determining our income tax provision due to transactions, credits and calculations where the ultimate tax determination is uncertain. Internal Revenue Service Audits Our U.S. federal income tax return for fiscal year 2012 is currently under review by the Internal Revenue Service (“IRS”). In addition, we are participating in the IRS’s Compliance Assurance Process for fiscal year 2014, which is a voluntary program in which taxpayers seek to resolve all or most issues with the IRS prior to or soon after filing their U.S. federal income tax returns. In February 2014, we executed a Closing Agreement with the IRS to settle a matter related to the deductibility of certain costs for our foreign subsidiaries in fiscal years 2011 through 2013, which resulted in a $10.2 million tax benefit during the second quarter of fiscal year 2014. In addition, our fiscal year 2011 federal income tax return was closed in connection with this settlement. Based principally on these events, our unrecognized tax benefits decreased $16.5 million during the six months ended February 28, 2014. Other In December 2013, Mexico enacted comprehensive tax reform legislation which, among other things, eliminated the flat rate business tax and modified the income tax exemption for educational companies. Based on this legislation, ULA is no longer subject to the flat rate business tax, and is now subject to income tax. Accordingly, we adjusted our deferred taxes associated with this jurisdiction in the second quarter of fiscal year 2014, which resulted in a $2.8 million tax benefit. In addition to the IRS audits discussed above, we are subject to numerous ongoing audits by state, local and foreign tax authorities. Although we believe our tax accruals are reasonable, the final determination of tax returns under review or returns that may be reviewed in the future and any related litigation could result in tax liabilities that materially differ from our historical income tax provisions and accruals.

Income Taxes

We determine our interim income tax provision by estimating our effective income tax rate expected to be applicable for the full fiscal year. Our effective income tax rate is dependent upon several factors, such as tax rates in state and foreign jurisdictions and the relative amount of income we earn in such jurisdictions. In determining our full year estimate, we do not include the estimated impact of unusual and/or infrequent items, which may cause significant variations in the customary relationship between income tax expense and income before income taxes. We exercise significant judgment in determining our income tax provision due to transactions, credits and calculations where the ultimate tax determination is uncertain.

Internal Revenue Service Audits

Our U.S. federal income tax return for fiscal year 2012 is currently under review by the Internal Revenue Service (“IRS”). In addition, we are participating in the IRS’s Compliance Assurance Process for fiscal year 2014, which is a voluntary program in which taxpayers seek to resolve all or most issues with the IRS prior to or soon after filing their U.S. federal income tax returns.

In February 2014, we executed a Closing Agreement with the IRS to settle a matter related to the deductibility of certain costs for our foreign subsidiaries in fiscal years 2011 through 2013, which resulted in a $10.2 million tax benefit during the second quarter of fiscal year 2014. In addition, our fiscal year 2011 federal income tax return was closed in connection with this settlement. Based principally on these events, our unrecognized tax benefits decreased $16.5 million during the six months ended February 28, 2014.

Other

In December 2013, Mexico enacted comprehensive tax reform legislation which, among other things, eliminated the flat rate business tax and modified the income tax exemption for educational companies. Based on this legislation, ULA is no longer subject to the flat rate business tax, and is now subject to income tax. Accordingly, we adjusted our deferred taxes associated with this jurisdiction in the second quarter of fiscal year 2014, which resulted in a $2.8 million tax benefit.

In addition to the IRS audits discussed above, we are subject to numerous ongoing audits by state, local and foreign tax authorities. Although we believe our tax accruals are reasonable, the final determination of tax returns under review or returns that may be reviewed in the future and any related litigation could result in tax liabilities that materially differ from our historical income tax provisions and accruals.